I'm not a newbie, but my contributions (before today I was at G2G3 (3,890 points) ) have been decimated because I had to change the record for my birth name (when I did sign up long ago, I used my birth certificate name that is completely unrelated to my DNA birth name--my father's birth name (Berg). Yes, well, IT'S COMPLICATED. But I think I finally got it straight.
That said, I do realize all you said about the collaborative process, and while I have yet to find anyone I recognize as a DNA relative on Wtree, I will and apparently this woman recognized me as one of hers. I haven't had the chance today to get back to this problem. Will later. I am a newbie in a particular part of W-tree, an Ashkenazi or Jewish arm of us, so perhaps I'll find out more about my father's father eventually.